Machine for tarring and sanding the surface of streets.



N 48 TEI'TE AHA 0 89 ,59 W-GLSOUTHGATR PA N 1) G ,1908

MACHINE FOR TARRING AND SANDING THE. SURFACE OF STREE 2 SHEETS-SHEET 1.

APPLICATION FILED OUT. 10, 1907.

k\\\ nn\m\ 5] me IMO-z e15 SO FGME WI LLlAr'l CHARL 7Z G/Hfozne No.894,859. PATENTED AUGA, 1908.

W. 0. SOUTHGATE. MACHINE FOR TARRING AND SANDING THBSURFAOE-OPSTREETS.

APPLICATION FILED OUT. 10, 1907.

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5 scum/R175 Q: wfkg CHARLE avwenlfo'c I l c I H UNITED sT T s WILLIAMCHARLES SOUTHGATE, or DUNEDIN, NEW ZEALAND.

MACHINE FOR manure AND VSANYDING 'rI E summer: OF smears- To all 'uihomit may concern:

Be it known that I, WILLIA CHARLEs SOUTHGATE, a subject of GreatBritain, re-- siding at Dunedin, New Zealand, have invented new anduseful Improvementsin Machines for Tarring and Sandin the Surface ofStreets and the Like, of which the fol! I lowing is a specification.

. The top of the tar tank :(2) is providedwith behind the tar tank [(2)is mounted a sand through the pipes (4).

My mventlon Is for a machine for tarring .and sanding the surface ofstreets. and, the

like, and is illustrated in the accompanying drawings, in which the samenumerals of reference indicate similar parts, and Figure 1 is asectional side elevation of the machine. Fig. 2 is a cross-sectionalview illustrating the tar distributing means. Figs. 3 ahd 4 arecross-sectional views illustrating the brush and brush. cranks.According to my invention there is a four wheeled truck frame (1)adapted to be drawn by suitable motive power. About midway of the truck(1) is mounted 'a' tank (2)for containing the tar, the sides of the tanksloping towards acentral outlet fitted with a va ve (7) so that the tarmay run out'readily even when the machine is on an incline.

a funnel (3) for filling .purposes. ,A series of vertical pipes (4)areconnected at their upper ends to the outlet valve (7) of. the tartank (2) and at their lower ends. to a horizontal pipe (5) which extendstransversely of the machine the desired width ashort distance above theground, and which has its under surface perforated with a inumber ofholes to allow of the exit of the tar (6), which flows from the tar tank.(2) down The valve (7) controlling the flow of the tar from the :tank(2) is 0 erated by'a connectingrod (8) and.-

han lever (9) mounted convenient to the drivers'"'seat (10). At therear, of the truck,

hopper (11), the bottom of which is fitted with a'flap door (12)tpivoted at its-upper end, and normallyhel closedby a cord or chain (13)which passes over a (16) and is connected at one fen to the flap door(12) and at the other-end to a drum (14) fixed on the spindle of ahand'wheel- (15) mounted on the machine near the drivers seat (10). Bythe operation of the hand-wheel (15) the flap (12) may thus be keptclosed or allowed to fall open under the weight-of the sand to permitthe latter to flow out. A spreading roller (17) provided Specificationof Letters Patent. Application flied October 10, 1907. Serial No.396,836.

guide pulley Patented Aug. 4, 1908.

with a number of parallel rows of teeth (18) is mounted between thecheeks of a trough (19) fitted below the sand hopper (11) so that sandflowing from the hopper falls onto the-spreading roller (17) the teeth(18) of which are arranged with spaces between them,. and so thattheteeth of one row are behind-the spaces between the teeth in the previousrow. The back of the trough.(19)

working parts under the machine.

The spreading roller (17 is driven at a high speed by means of chains(20) which ass round small sprocket wheels (21) on the spindle (34) ofthe 8 reading roller (17 and larger sprocket whee s (22) on a spindle(33) mounted in a bracket secured under the frame of the machine. Thesprocket wheels (22) are driven by means of fixed on the spindle (33)and caring with pinions (24) fixed on the rear ax e (35) of the road.wheels (25). Below the truck frame and behind the tar delivery ipe (5)is a reciprocating brush (26) norma ly touching the street surface andextending across the machine from end to end of the horizontal tardelivery I pipe (5). The brush frame (29) carries at its ends blocks(27) and is secured to sliding rods (38) which slide in guides (39) andare reciprocated by connecting rods (30) connected to cranks (31) on asprocket wheel (36) mounted in a bracket secured under the truck frame.The blocks (27) slide in uides (28) see Fig. 3. The sprocket wheel 36)is driven by a chain (32) from a sprocket wheel (37) on the rear axleThe brush is removably secured to the frame (29) so that when themachine is out of operation the brush may be removed. 1

In 0 eration, the tank (2) having been filled with tar, andthe hopper(1 1) .with sand, the'ha-ulage power is app i chine along, and the valve(7) is opened to allow the desired quantity of tar to flow be treated. erevolving of the rear wheels of themachine sets in action'the gearingbeas to spread the tar on the surface, and also to revolve the spreadingroller (17 The out, the sand falls on to the spreading roller (17 and isthrown out behind the machine brush. g

pinions (23) through the pi es (4) (5) on to the surface to 7 over thetar that has been-spread by theprevents any sand being thrown into theed to draw the mafore mentioned to operate the brush-(26)-so i flap door(12)'ha ving been allowed to open-so that the desired quantity of sandcan flow.

' ters Patent is:

Wheels, atar tank on a tar tank and a sand 1. A machine for tarring andsanding the surface of streets and the like, comprising in combination atruck mounted on road wheels,

means for leading tar from the tar tank and spreading it on the surfaceto be treated, means for discharging-the sand from the sand hopper, andaspreading roller in the path of sad sand as described.

2. A machine for tarring and sanding the surface of streets and thelike, comprising in combination, a truck mounted on road the forepart ofthe truck, a sand hop er behind the tar tank provided with an out et, aspreading roller at the rear of the truck below the outlet of the sandhopper, pipes for leading tar down from the tar tank and delivering iton the surface to be treated, a reci rocating brush arranged behind thetar de ivery pipes, and driving --mechanism for said brush and spreadingroller, substantially as described.

hopper on the truck,

3. A machine for tarring and sanding the surface of streets and thelike, comprising in combination, a truck mounted on road wheels, a tartank on the forepart of the truck, a sand hopper behind said tar tank,

said tar tank and sand hopper being provided with outlets respectively,means for openin and'closing said outlets respectively, vertica pipesleading from the outlet of said tartank to a horizontal perforated pipeextendin across under the truck close to the ground level, a'reciprocating brush behind said horizontal pipe touching the ground, aspreading roller at the rear of the truck behind said brush and belowthe outlet of said sand hopper and driving mechanism for said brush andspreading roller substantially as described. p

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

WILLIAM CHARLES SOU'IHGATE. Witnesses:

ANDREW JOHN PARK, JoHN RUTHERFORD PARK.

